Originally Posted by SBruce
The NF program (Exbal) doesn't accept the G7 BC's. No mater what you do or where you go, it is programed for G1.
I've personally recently witnessed (as the spotter) some discrepancies of the NF program VS actual field drops at distances between 700 and 950 yds. The same exact bullet at the same velocities you mentioned was shooting higher (quite a bit higher on some days) than the program suggested. We also noticed less wind drift than the program was calling for. The old Sierra program didn't help any either (still G1) It agreed pretty close with the Nightforce program. (Kestrel real field data (Alt by GPS, temp, BP, RH, ect) was accounted for and input into the programs).
I'd been thinking that the amount of sunlight and mirage was partly to blame, and the real/true click value on the scope knobs was contributing too, but forgot about the new G7 BC's.............maybe something to that....??
Thats what I'm talking about. I'm able to make the shots at my ranch but only because i know the yardage and the moa value for that given spot/yardage because i shoot there all the time. not going off of what exbal might be saying to do for that day. i have really noticed it this year sense i have started to shoot out to 1250-1500. Once i have exbal given the right moa for 1250 my other yardages are off are the other way around.
I think i remember Kirby or Shawn saying they were using a BC of .800 for 300SMK at are around 2900 does any one know what G1 BC is working the best for the 300SMK. i was thinking that was a little to high but what do i know
I sure would like to get this worked out because i want to be able to trust my program exbal are what ever I'm using. As long as i put in the right info i want it give out the right info.
I have the program thats on the iphone BFT so i guess I'll have to try and play around with it and the G7 to see if it works any better for me. I just like exbal being on my PDA a lot better than my Iphone.